Opel Astra J — Reliability

J 2011–2014 1 engine

Reliability Summary

Engine 1.7 CDTi (Z17DTH/Z17DTJ/Z17DTR/A17DTS/A17DTR/A17DTE/A17DTC) — 71/100 ACCEPTABLE
Known Issues 8

Engine in this model

ACCEPTABLE 71

1.7 CDTi (Z17DTH/Z17DTJ/Z17DTR/A17DTS/A17DTR/A17DTE/A17DTC)

1.7L Diesel I4

Isuzu-designed 1.7 diesel built in Poland for the Astra, Corsa, Meriva, Zafira and Combo. Noisy and ...

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Known Issues Across All Engines

Issue Engine Severity Onset
DPF clogging (city driving) 1.7 CDTi (Z17DTH/Z17DTJ/Z17DTR/A17DTS/A17DTR/A17DTE/A17DTC) high 40,000 km – 100,000 km
Injector sleeve seal leak — coolant loss 1.7 CDTi (Z17DTH/Z17DTJ/Z17DTR/A17DTS/A17DTR/A17DTE/A17DTC) moderate —
Injector / common-rail faults (expensive Denso parts) 1.7 CDTi (Z17DTH/Z17DTJ/Z17DTR/A17DTS/A17DTR/A17DTE/A17DTC) moderate —
Oil-pump seal leak onto the timing belt 1.7 CDTi (Z17DTH/Z17DTJ/Z17DTR/A17DTS/A17DTR/A17DTE/A17DTC) moderate —
EGR valve failure 1.7 CDTi (Z17DTH/Z17DTJ/Z17DTR/A17DTS/A17DTR/A17DTE/A17DTC) moderate 50,000 km – 100,000 km
Turbo / turbo control valve failure 1.7 CDTi (Z17DTH/Z17DTJ/Z17DTR/A17DTS/A17DTR/A17DTE/A17DTC) moderate 150,000 km – 250,000 km
Dual mass flywheel wear 1.7 CDTi (Z17DTH/Z17DTJ/Z17DTR/A17DTS/A17DTR/A17DTE/A17DTC) moderate 80,000 km – 150,000 km
Glow plug failure 1.7 CDTi (Z17DTH/Z17DTJ/Z17DTR/A17DTS/A17DTR/A17DTE/A17DTC) minor 80,000 km – 150,000 km